From 67cc0d4077951295f42bed63805e91b46c24477b Mon Sep 17 00:00:00 2001 From: Willem de Bruijn Date: Mon, 8 Sep 2014 19:58:58 -0400 Subject: net-timestamp: optimize sock_tx_timestamp default path Few packets have timestamping enabled. Exit sock_tx_timestamp quickly in this common case. Signed-off-by: Willem de Bruijn Signed-off-by: David S. Miller --- include/net/sock.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/net/sock.h') diff --git a/include/net/sock.h b/include/net/sock.h index 049ab1b732a6..515a4d01e932 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2199,6 +2199,8 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, sk->sk_stamp = skb->tstamp; } +void __sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags); + /** * sock_tx_timestamp - checks whether the outgoing packet is to be time stamped * @sk: socket sending this packet @@ -2206,7 +2208,13 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk, * * Note : callers should take care of initial *tx_flags value (usually 0) */ -void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags); +static inline void sock_tx_timestamp(const struct sock *sk, __u8 *tx_flags) +{ + if (unlikely(sk->sk_tsflags)) + __sock_tx_timestamp(sk, tx_flags); + if (unlikely(sock_flag(sk, SOCK_WIFI_STATUS))) + *tx_flags |= SKBTX_WIFI_STATUS; +} /** * sk_eat_skb - Release a skb if it is no longer needed -- cgit v1.2.3